Gulfstream Aerospace 1978 AA 5A CHEETAH Owner's manual

I
",I
I
I.
I
II
if
I'
:I
,
~
(--......
L
Ii'
" .-'
PILOT'S OPERATING HANDBOOK
t·
Model AA·5A'CHEETAH
1977 1197~ 11979
THIS HANDBOOK INCLUDES THE MATERIAL REQUIRED TO BE
FURN~SH~9 TO TI1E PILOT BY FA~ PART 23.
SERIAL~O. __ --.- __ --..,- __
REGISTRATION NO. ____ _
J
'QII
Gulfstream ~e Corporation
Ac:arraa 91MPANY
Savannah, Georgie, U.S.A.
Issued: January 15, 1977
Revision 4: March 2, 1988

© 1988 Gulfstream Aerospace Corporation
All rights reserved, including the right to reproduce this publication. No part may
be reproduced, stored in any retrieval system, or transmitted in any
part or form
or by any means, electronic, photoCopying, microfilm, microfiche, mechanical,
or
otherwise, without priorwritten pe~mission of Gulfstream AerospaceCorporation.

'.
GULFSTREAMAEROSPACE
MODEL AA·5A
CH EEl AH
LIST OF EFFECTIVE PAGES
LIST OF EFFECTIVE PAGES
Dates of Issue for original and revised pages are:
Original ............. 0 ••.......•. January 15, 1977
Revision ............ 1 ............ Docember 15, 1977
RevisiOn ...••..•.••• 2 ............ July 15, 1978
Revision ............ 3 ............ February
15, 1979
Revision ............ 4 ..........
,.' March 2, 1988
THE TOTAL NUMBER OF PAGES IN THIS HAt-lDBOOK IS
181, CONSISTING OF THE
FOLLOWING.THIS INCLUDES THE SUPPLEM~NTS PROVIDED IN SECTION 9WHICH
COVER OPTIONAL
SYSTEt.!IS AVAILABLE IN THE AIRPLANE.
Page
No.
• Revision
No.
Title .................................................... 4
A ...........................................:............. 4
B ......................................................... 4
I ........................................................... 3
II thru III ............................................. 0
Iv ......................................................... 3
1·1 thru 1·2 ........................................ 0
1·3 .........................................:............. 3
L
1·4 ................................:...................... 1
" 1·5 thru 1·12 ...................................... 0
2·1 ....................................................... 0
2:2 Blank ........................................... 0
2·3 ....................................................... 3
2·4 thru 2·5 ........................................ 0
2-6 ....................................................... 4
2·7 thru 2·8 ........................................ 0
2·9 thru 2·12 ...................................... 1
3·1 thru 3·4 ........................................ 0
3·5 ....................................................... 2
3·6 thru 3-17 ...................................... 0
3·18 ..................................................... 1
4·1 thru 4·2 ........................................ 0
4·3 ................................................;
....•. 3
4·4 thru 4·7 •••...............:..................... 0
4·8 thru 4·9 ........................................ 1
4·10 ............................. ::-. ................... :. 0
4·11 ..................................................... 1
." 4·12 ..................................................... 0
4,,13 ..................................................... 1
l 4·14 thru 4·21 .................................... 0
'-.I 4·22 ..................................................... 1
Page
No. "Revision No.
4·23 ..................................................... 0
4·24 ..................................................... 1
4·25 ..................................................... 0
4·26 Blank ......................................... 0
5·1 ....................................................... 0
5·2 Blank ........................................... 0
5·3 thru
5·14 .•..••••..•.....•.............•....... 0
5·15 ...........
i: ........................................ 4
5·16 thru 5·18 .................................... 0
5·19 ..................................................... 2
5·20 ..................................................... 0
5·21 ..................................................... 2
5·22 thru 5·25 ...........•........................ 0
5·26 Blank ..............•.•.....•;................. 0
6·1 ....................................................... 0
6·2 Blank ........................................... 0
6-3 thru 6-15 ...................................... 0
6-16 ..................................................... 3
6·17 ..................................................... 0
, 6-18 thru 6-19 .................................... 1
6-20 Blank ......................................... 0
7·1 thru 7·4 ........................................ 0
7·5........................................................ 1
7·6 thru 7·15 ........................:............. 0
'. 7·16 thru 7·16a .................................. 1
. 7·16b Blank ....................................... 0
, 7·17 thru 7·24 .................................... 0
8·1 ....................................................... 0
.. 8·2 Blank ........................................... 0
8·3 thru 8·5 ........................................ 3
, 8·6 thru 8·14 ...................................... 0
• Zero.In
this column Indicates original page.
Revised: March
2, 1988 A

LIST OF EFFECTIVE PAGES
Page
No. • Revision
No.
9-1 ....................................................... 0
9-2 Blank ........................................... 0
9·3 ....................................................... 0
9-4 Blank ........................................... 0
10-1 thru 10-2 .................................... 0
10-3 ..................................................... 3
104 thru 10-7 .................................... 0
10-8 ..................................................... 2
10-9 thru 10-16 .................................. 0
• Zero
In this column Indicates an original page.
B
GULFSTREAM AEROSPACE
MODEL AA·5A CHEETAH
Revised: March 2, 1968
),
)~
(

GULFSTREAM AMERICAN
.",~PEL AA·5A CHEETAH
WELCOME ABOARD!
WE LCOME ABOARD
Your AA·5A Cheetah has been designed and constructed to provide you with a
responsive
four·place airplanE! to serve combortably and economically your needs
for either pleasure or busine~s. flying.
This handbook has been prepared to help you obtain the maximum pleasure and
utility from your airplane. Read it carefully, review it frequently, and keep it with
you in the airplane at all times.
With proper operational techniques and good maintenance, your Gulfstream I
American Cheetah should serve you well. Get to know your Gulfstream American
Dealer. He is equipped to provide any assistance that may be required.
Revised: February 15, 1979

PERFORMANCE·
SPECIFICATIONS
GU LFSTREAMAME RICAN
MODEL AA·5A CHEETAH
PERFORMANCE-SPECIFICATIONS-
SPEED:
MaxillllHll at
SI~<l Level 136 KNOTS
Cruise,
IlJ"u Power at 8500 FI. 127 K~IOTS
Cruise, 65"0 Power at 8500 FI. 118 KNOTS
CRUISE: Recommended
Lean Mixture with fuel allowance for engine start,
taxi, takeoff, climb ann 45 minutes reserve at 50% power.
75% Power at 8500 FI. . . ... 657 NM
51 Gallons USilble Fuel . . . 5 HRS: 15 MIN
75% Power at 8500 Ft. . . . . . ... 448 NM
37 Gallons Usable Fuel . . . 3 HRS: 38 MIN
RATE OF CLIMB AT SEA LEVEL .. 660 FPM
SERVICE
CEILING. . . . . .12,650 FT
TAKEOFF PERFORMANCE:
)
Ground Roll ..... .
Total Distance Over 50·Ft Obstacle
LANDING PERFORMANCE:
·
.880 Fl ').
· 1600 FT
Ground Roll
........... .
Total Distance Over 50·Ft Obstacle
STALL SPEED (CAS):
Flaps Up, Power
Off ...
Flaps Down, Power Off
MAXIMUM GROSS WEIGHT.
STANDARD EMPTY WEIGHT:
BAGGAGE ALLOWANCE (Normal Category)
WING
LOADING: Pouncls/Sq Ft
POWER LOADING: Pounds/HP
TOTAL FUEL CAPACITY
Standard Tanks ..... .
Optional Long Range Tanks
01 L CAPACITY ..... .
ENGINE: Avco Lycoming .. .
150 BHP at 2700 RPM
PROPELLER: Fixed, Diameter
· .380 FT
· 1100 FT
.55 KNOTS
.53 KNOTS
2200 l.BS
1286 l.BS
.120 l.8S
15.7
.. 14.7
38 GAl.
52.6 GAL
· . 80TS
.0·320·E2G
... 73 IN.
•Performance specifications are based upon stanrlarn atmosphere, zero wind, a~l.
gross weight conditions.
ii Issued: January
f!:f; 1977
)

i
I
\.
.• 9\;L~FSTREAM AMERICAN
MODEL AA·5A CHEETAH TABLE OF CONTENTS
TAB~E OF CONTENTS
GENERAL .,
LIMITATIONS
EMERGENCY PROCEDURES
NORMAL PROCEDURES
PERFORMANCE
...
WEIGHT & BALANCE/
EQUIPMENT LIST
AIRPLANE & SYSTEMS DESCRIPTION
AIRPLANE HANDLING.
SERVICE & MAINTENANCE
SUPPLEMENTS
(Optional Systems Description
& Operating Procedures)
SAFETY INFORMATION ..... .
Issued: January 15. 1977
SECTION
. 1
.2
.3
.4
.5
.6
.7
.8
.9
10
iii

WARRANTY GULFSTREAM AMERICAN
MODEL AA-5A CHEETAH
GULFSTREAM AMERICAN CORPORATION (herein GULFSTREAM ~)'
AME RICAN), warrants each new aircraft and part thereof manufactured by it,
together with all new aircraft equipment and accessories bearing the name
"GULFSTREAM AMERICAN," to be free from defects in material and work-
manship under normal use and service, but extends no warranty of any kind,
expressed or implied,
to any items not manufactured by GULFSTREAM
AMERICAN, or not so bearing its name, whether incorporated into or installed in
the aircraft, except thilt the workmanship involved in installing such items is
warranted to be without defect. The obligation of GULFS'fREAM AMERICAN
under this warranty is limited to replacement or repair, at the option of
GUL FSTR EAM AME R.ICAN, of any such aircraft, or any part or accessory which
shall within six (6) months (twelve (12) months dn 1978 and subsequent models)
of operation be found defective. Such aircraft, part or accessory is to be returned
to a GULFSTREAM AMERICAN DEALER upon which examination by
GULFSTR
EAM AME RICAN, shall disclose to its reasonable satisfaction to have
been thus defective. This warranty shall
not in any way apply to or cover any
products which are
in GULFSTREAM AMERICAN's opinion damaged as a result
of being in any manner altered or repaired outside of the factory of
GULFSTREAM AMERICAN or that shall have been subject to misuse
or
negligence.
GULFSTREAM AMERICAN makes no warranty whatsoever with respect to
en- )
gines, radios, prorellers, ignition apparatus, st<Jrting devices, generators, batteries,
or
other trade accessories, inasmuch as such products are generally warranted
separately by their respective manufacturers.
"THESE WARRANTY PROVISIONS ARE EXPRESSLY IN LIEU OF ALL
OTHER WARRANTIES, EXPRESSED, STATUtORY OR IMPLIED IN FACT
OR BY LAW, INCLUDING ANY IMPLIED WARRANTY OF ~~ERCHANT
ABI LlTY OR FITNESS FOR A PARTICULAR PURPOSE, AND OF ANY
OTHER OBLIGATION
OR LIABILITY ON THE PART OF GULFSTREAM
AMERICAN, EXPRESSED OR IMPLIED, OF ANY NATURE t~/HATSOEVER.
GULFSTREAM AME RICAN NEITHER ASSUMES NOR AUTHORIZES ANY
OTHER PERSON
OR AUSINESS ORGANIZATION TO ASSUME FOR IT ANY
OTHER WARRANTY
OR LIABILITY IN CONNECTION WITH THE SALE,
USE OR OPERATION Or- ITS PRODUCTS."
IMMEDIATELY
ON COMMENCING FIRST USE OF AN AIRCRAFT, A WAR-
RANTY VALIDATION CARD MUST BE FILLED OUT AND MAILED TO THE
ATTENTION OF THE CUSTOMER SERVICE i\~ANAGER, COMMERCIAL
LIGHT AIRCRAFT, P.O. BOX 2206, SAVANNAH, GEORGIA, 31402. NO ")
WARRANTY CLAIMS WILL FlE HONORED IF THIS CARD IS NOT ON FILE
AT THE FACTORY. .
iv
Revised: February 15, 1979

GULFSTREAM AMERICAN
J, M6bEL AA-5A CHEETAH
TABLE OF CONTENTS
Three View "
Introduction , ,
Descriptive Data
Engine, ,
Propeller , ,
Fuel
....
SECTION 1
'GENERAL
Oil . , . , , .. , . , " ..
Maximum Certificated Weights
Standard Airplane Weights
Cabin and Entry Dimensions . .
Baggage Space and Entry Dimensions
Specific Loadings
......... .
Symbols, Abbreviations and Terminology ...
General Airspeed Terminology and Symbols
Meteorological TerminolQgy
........ .
Engine Power Terminologv
.......... ,.
Airplane Performance and :Flight Planning Terminology
Weight and Balance Terminology .......... .
Issued: January 15, 1977
SECTION 1
GENERAL
Page
.1·2
,1-3
· 1-3
.1-3
· 1·3
· 1-4
· 1-,4
· 1·8
· 1·9
.1-9
· 1·9
.1·9
.1-9
.1-9
1-10
1·10
1-11
1·11
,-,

SECTION 1
GENERAL
NOTES:
1. Wheel base length 5'4".
2. Minimum turning radius 19' 11".
3. Pivot point - center of main gear tire.
GULFSTREAM AMERICAN
MODEL AA-5A CHEETAH
Figure ,-,. Three View
1-2
Issued: January lS;'""fft"j1
)
)

GULFSTREAM AMERICAN
~ ',"IJl!'\QDEL AA-5A CHEETAH
INTRODUCTION
SECTION 1
GENERAL
The ten sections of this hanqbook contain the information needed by the pilot I
for safe and efficient oper9't;on of the Gulfstream American Model AA-5A air-
planes_ This handbook also includes the material required to be furnished to the
pilot by FAR, Part 23, and supplernef]tal data covering Gulfstream American
designed optional equipment installed
in the airplane.
Section 1 provides basic data and information of general interest to the pilot, to
assist him
in loading, shelteiing, handling, and routine preflight checking of the
airplane. Also included in this section are definitions and explanations of the
symbols, abbreviations and terminology used in this handbook.
DESCRIPTIVE DATA
ENGINE
NOTE
Unless otherwise noted, all perfor-
mance and operational data in this
book are based on
sea level, standard
day, and airplane gross weight con-
ditions.
Number
of Eng'ines:
Manufacturer: Avco Lycoming
Model Number: 0-32D-E2G
Type: Normally-aspIrated, direct-drive, air-cooled, horizontally-opposed,
carburetor equipped, four-cylinder engine with 319.8 cubic inch
displacement:
Horsepower Rating and Engine Speed: 150 HP at 2700 RPM
PROPELLER
Manufacturer: McCauley
Model Number: 1C172/BTM7359
Diameter:
73 inches
Type: Fixed Pitch
Revised: February 15, 1979
1-3

SECTION 1
GENERAL GULFSTREAM AMERICAf\
MODEL AA-5A CHEETAF
FUEL
CAUTION
UNDER NO CIRCUMSTANCES
SHOULD FUEL OF A LOWER OC·
TANE RATING THAN THAT SPECI·
FlED BELOW, OR AUTOMOTIVE
FUEL (REGARDLESS OF OCTANEI
BE USED.
Grade (and
colod: 80/87 Minimum Grade Aviation Fuel (redl 100 Low Lead
Aviation Fuel (bluel
is also approved. Refer 10 the latest revision of Lycoming
Service Instruction No.
1070 for further information concerning fuels.
Capacity at
an ambient temperature of 70'F (21°CI:
Standard Tanks:
Total: 38 U.S. Gallons (31~6 Imperial Gallonsl (143.8 Litersl
Each Tank: 19 U.S. Gallons (15.8 Imperial Gallonsl (71.9 Litersl
Total Usable: 37 U.S. Gallons (30.8 Imperial Gallons) (140 Liters)
Optional Long Range Tanks
I Total: 52.6 U.S. Gallons (43.8 Imperial Gallons) (199.0 Liters)
Each Tank: 26.3 U.S. Gallons (21.9 Imperial Gallonsl (99.5 Liters)
Total Usable: 51 U.S. Gallons (42.5 Imperial Gallons) (193 Liters)
OIL
Grade (Specification):
1·4
Aviation Grade Straight Mineral Oil MIL·L·6b82 (Figure 1·2) shall be used to
replenish oil supply during the first 25 hours of operation and at the first
25·hour oil change. Continue to use this grade of oil for a minimum of first
50 hours of or until oil consumption has stabilized.
NOTE
The airplane is delivered from the fac·
tory' with corrosinn preventive airplane
I!~:qine oil. This oil should be drained
after tile first 25 hours of engine opera·
tion.
MI L·L·22851 (Figure 1·2) Ashless Dispersant Oil: This specification oil shall
bl:: used after the rirst 50 hours of engine operation.
Revised: December 15,'''-971''
)
)
)

GULFSTREAM AMERICAN
MODEL AA-5A CHEETAH
TRADE NAME
MIL-G-21164 GREASE (Note 1)
Aeroshell Grease 17 .
Braycote 664
PED 3350
Grease
Royco 64 Grease
TG-4727 Grease
MIL-G-6711 GRAPHITE (Note 1)
Graphite
Graphite
Graphite
SECTION 1
GENERAL
MANUFACTURER
Shell Oil Company
Bray Oil Company
Standard Oil Company
Royal Luhricants Company
Texaco Inc.
Dixon Company
Electrofilm Company
Electro-Graph Company
MIL·H-5606 HYDRAULIC FLUID (Note 1)
3125 HVD Oil Humblt:! Oil & Refining Company
Brayco Micronic 756C Bray Oil Company
PE D-3337, -3335 Standard Oil Company
Royco 756A & B Royal Lubricants Company
XSL 7828 Shell Oil Company
YT-283 Union Carbide
VV-P-236 PETROLATUM (Note 1)
Braycote 236 Bray Oil Company
Parmo 70 Humble Oil & Refining Company
Royco 1R Royal Lubricants Company
MIL-L-7870 OIL (Note 1)
Brayco 363 Bray Oil Company
Cosmolube 263
E. F. Houghton Company
Enco Instrument Oil Humble Oil & Refinin[l Comrany
Low TelllpcrClture Oil 1692 Texaco Inc.
Royco 363 Royal Lubricants Company
Figure 1-2 Lubricants (Page 1 of 3)
Issued: January 15, 1977
1-5

SECTION 1
GENERAL
TRADE NAME
MIL·G-2576(l GREASE (Note 1)
~ .. -----
Aeroshell Grease 16
Braycote 6605
Royco 60R
Supermil ASU No. 06752
TG-4971 Grease
MIL-:G·7711 GnEASE (Note 1)
Aeroshell No.6
Regal AFB 2
GULFSTREAM AMERICAN
MODEL AA-5A CHEETAH
. MANUFACTURER
Shell oii Company
Bray Oil Company
Royal Lubricants Company
American Oil Company
Texaco Inc.
Shell Oil
Company
Texaco Inc.
MIL·L·6082 STRAIGHT MINERAL OIL - ENGINE (Nl)tes 1 and 2)
-_._--
Aeroshell Oil 65 Shell Oil Company
Aeroshell Oil 100
Shell Oil Company
Chevron Aviation Oil 65
Chevron Oil Company
Grade 1100
Chevron Oil Company
Avrex 101/1065
Mobil Oil Company
Avrex 101/1100
Mobil 011 Company
Conoco Aero Oil 1065
Continental Oil Company
Conoco Aero Oil 1100
Continental Oil Company
Grade 1065
Champion Oil & Refining Company
Grade 1100
Champion Oil & Refining Company
MIL·L·22851 ASHLESS DISPERSANT OIL ... ENGINE (Notes 1 and 2)
Aeroshell W 120 Shell oil Company
Aeroshell wao Shell Oil Company
Chevron Aero Oil Grade 120
Standard Oil Company
RT-451 Mobil Oil
Company
RM-173E Mobil Oil Company
Figure 1·2. Lubricants (Page 2 of 3)
1·6
Issued: January 15, 1977
)
)
)

GULFSTREAM AMERICAN
M.QJ;l.EL AA·5A CHEETAH
TRADE NAME
SECTION 1
GENERAL
MANUFACTURER
MIL·L·22851 ASHLESS DISP-ERSANT OIL - ENGINE (Notes 1 and 2) (Cont.)
RM·180E
Mobil Oil Company
TX·6309
Texaco Inc.
Premium AD 120
Texaco Inc.
Premium AD 80 Texaco Inc.
Oi1E·120
Exxon Company
Oil A·l00
Exxon Company
Oil E·80
Exxon Company
Note 1: The vendor products listed in this chart have been selected as
representative of the specification under which they appear. Other
equivalent products' conforming to the same specifications may be used.
Note 2: Oils conforming to the latest revision of Lycoming Service Instruction
No. 1014 may be u~l:!d.
Figure 1·2 Lubricants (Page 3 of 3)
Issued: January 15, 1977
1·7

SECTION 1
GENERAL
'Recommended Viscosity:
Average Ambient Air
Temperature
Above
60"F (16°C)
30"F (-l°C) to 90"F (32"C)
O"F (-l8"C) to 70"F (21 DC)
Below 1 O"F (-l2"C)
. Mineral Grade
SAE 50
SAE 40
SAE 30
SAE 20
GULFSTREAM AMERICAN
MODEL AA-5A CHEETAH
Ashlesl Dispersant
SAE
40 or SAE 50
SAE 40
SAE 40 or SAE 20W-30
SAE 20W-30
'. Refer to latest revision of Lycoming Service Instruction No_ 1014 for further
information_
Oil Capacity
Sump: B
U.S. Quarts (6.66 Imperial Quarts) i7.57 Liters)
Minimum Safe Quantity
in Sump: 2 U.S. QUarts (1.67 Imperial Quarts)
(1.89 Liters)
It is recommended that lubricating oil be changed at least every 50 hours of
.engine operation.
MAXIMUM CERTIFICATED WEIGHTS
Takeoff:
Landing:
Normal Category:
Utility Category: 2200 pounds 1850 pounds
CAUTION
THE REAR SEATS SHALL NOT BE
OCCUPI ED DURING FLIGHT IN
UTILITY CATEGORY OPERATIONS.
Normal Category:
Utility Category: 2200 pounds
1850 pounds
We'ght
in Baggage Compartment, Normal Category: 120 pounds maximum allow-
able If C.g. is within Center of Gravity Envelope (Figure 6-5l. Refer to Section 6
for cilrgo loading
in~tructions.
Weight in Baggage Compartment, Utility Category: IN THIS CATEGORY THE
BAGGAGE COMPARTMENT
AND REAR SEATS SHALL NOT BE OCCUPIED.
Issued: January 15, 1977
)
)

GULFSTREAM AMERICAN
;,. MODEL AA·5A CHEETA!"I
STANDARD AIRPLANE WEIGHTS
NOTE
Actu,,1 weights for
each airplane will
vary,according to installed equipment.
Refer to weight and balance data sup-
plied
with the particular airplane for
specific
data for that airplane.
Standard Empty Weight: 1286 Ibs.
Maximum Useful Load: t-lormal Category: 9141bs.
Utility Category: 5541bs.
CABIN AND ENTRY DIMENSIONS
SECTION 1
GENERAL
Detailed dimensions of the cabin interior and canopy opening are provided in
Section 6. '
BAGGAGE SPACE AND
ENTRY DIMENSIONS
Baggage area and access dimensions are provided in Section 5.
SPECI FIC LOADINGS
Wing Loading:
Power Loading: 15.7
pounds per square foot
14.7 pounds per B.H.P.
SYMBOLS, ABBREVIATIONS AND TERMINOLOGY
GENERAL AIRSPEED TERMINOLOGY AND SYMBOLS
KCAS
KIAS
KTAS
Knots Calibrated Airspeed is indicated airspeed corrected fOI
position and instrument error and expressed in knots. Knotl
calibra~~d airspeed is equal to KTAS in standard atmosphere at
sea
lev~1.
Knots Indicated Airspeed is the speed shown on the outer scalE
of the ~irspeed indicator and expressed in knots.
Knots True Airspeed is the airspeed expressed in knots relativ!
to undisturbed air which is KCAS corrected for altitude am '
temperature.
Issued: January 15, 1977
1-[

SECTION 1
GENERAL
VFE
103
VNO
la9
vNE
/(,1
Vs
5:5
Vs
0
53
Vx
6S
GULFSTREAM AMERICAN
MODEL AA-5A CHEETAH
Maneuvl!ring Speed is the maximum speed at which application
of full <lvailable control will not overstress the airplane.
Maximum Flap Extended Speed is the highest speed permissible
at which wing flaps can be extended.
Maximum Structural Cruising Speed is the speed that should
not be exceeded except in smooth air. then only with caution.
Never Exceed Speed is the speed limit that may not be ex-
ceeded ilt any time.
Stalling Speed (Clean) is the minimum steady flight speed at
which the airplane is controllable_
Stalling Speed (Landing) is the minimum steady flight speed at
which the airplane is controllable in the landing configuration.
Best Angle-of-Climb Speed is the speed which results in the
greatest gain of altitude in a given liorizontal distance.
)
Vy
19
Best Rate-of-Climb Speed is the . speed which results in the )
greatest gain in altitude in a given time_
METEOROLOGICAL TERMINOLOGY
OAT
Standard
Temperature
Pressure
Altitude
Outside Air Temperature is the free air static temperature. It is
expressed in either degrees Celsius (Centigrade) or degrees
Fahrenheit.
Standard Temperature is 15°C (~9°F) at sea level pressure
altitude and decreases by 2°C (4~F) for each 1000 feet of
altitude.
Pressure Altitude is the altitude read from an altimeter when
the barometric subscale has been set to 29.92 inches of mercury
(1013 mb).
ENGINE POWER TERMINOLOGY
BHP
RPM
1-10
Brake Horsepower is the power developed by the engine.
Revolutions Per Minute is engine speed (number of revolutions
engine turns per minute). .
Issued: January 15. 1917
')

GULF~TREAM AMERICAN
" MobEt'AA.5A CHEETAH
SECTION 1
GENERAL
AIRPLANE PERFORMANCE AND FLIGHT PLANNING TERMINOLOGY
Demonstrated
Crosswind
Velocity
Usable Fuel
Unusable Fuel
GPH
g
Demonstrated Crosswind Velocity is the velocity of the
crosswind component for which adequate control of the
airplane during takeoff and landing was actually demonstratef;!
during certification tests.
Usable Fuel
is the fuel available for flight.
Unusable Fuel is the quantity of fuel that cannot be used in
flight.
Gallons Per
HO!lr is the amount of fuel (in gallons) consumed
per hour.
9 is a unit of accehiration equivalent to that produced by the
force of gravity.:
WEIGHT AND BALANCE TERMINOLOGY
Reference
Datum
Station
Arm
Moment
Center of
Gravity (e.g.!
i c.g. Arm
Reference Datum is an imaginary vertical plane from which all
horizontal distances are measured for balance purposes.
Station is a location along the airplane longitudinal axis given in
terms of the distance from the reference datum .
.;
Arm is the horizontal distance from the reference datum to the
center of gravity (c.g.) of an item.
Moment is the product of the weight of an item multiplied by
its arm. (Mom!!nt divided by the constant 1000 is used in this
Handbook to ~implify balance calculations by reducing the
number of digits.)
Center of Gra~ity is the point at which an airplane would
balance if susPllnded. Its distance from the reference datum is
found by dividirg the total moment by the total weight of the
airplane.
Center of Gravity Arm is the arm obtained by adding the
airplane's individual moment and dividing the sum by the total
weight.. .
Issued: January 15, 1977
1·11

SECTION 1
GENERAL
c.g. Limits
Standard
Empty Weight
Basic
Empty
Weight
Useful Load
Gross
Weight
Maximum
Takeoff
Weight
Maximum
Landing
Weight
Tare
1·12
GULFSTREAM AMERICAI'
MODEL AA·5A CHEETAI-
Center of Gravity Limits are the extreme center of gravit, ).
locations within which the airplane can be operated at a givel
weight.
Standard Empty Weight is the weight of a standard airplane,
including unusable fuel, full operating fluids and full engine oil.
Basic Empty Weight is the standard empty weight plus the
weight of optional equipm~nt.
Useful Load is the difference between maximum gross weight
and the basic empty weight.
Gross Weight
is the maximum weight to which the airplane is
certificated.
Maximum Takeoff Weight is the maximum weight approved for
the start of the takeoff run.
Maximum Landing Weight
is the maximum weight approved h )
the landing touchdown.
Tare is the weight of cho~ks, blocks, stands, etc., used when
weighing an airplane, and is included in the scale readings. Tare
is deducted from the scale reading to obtain the actual (netl
airplane weight.
Issued: Janua(~tl'5. 19, ,
)